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oksano4ka [1.4K]
3 years ago
11

There are two groups of earthworms on the sidewalk. One group is on a shady, moist area on the sidewalk, and they are moving. Th

e other group is on a very sunny, dry area of the sidewalk, and none of the worms in this group are still living.
What question could be asked to investigate the reason for these observations?

A. What kinds of birds eat earthworms?
B. How do earthworms get on the sidewalk?
C. What kind of living environment do earthworms need?
Biology
1 answer:
Nikitich [7]3 years ago
8 0
C. What kind of living environment do earthworms need?<<<< that's what kind of question i would rather ask, because : all earthworm species need moist soil conditions to survive.

- I hope this is helpful ;) have a good night
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Answer:

\frac{1}{126} or 0.0079.

Explanation:

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Total number of ways to plant 10 bulbs in one row is

\text{Total ways}=\frac{10!}{5!5!}

\text{Total ways}=\frac{10\times 9\times 8\times 7\times 6\times 5!}{5\times 4\times 3\times 2\times 1\times 5!}

Cancel out common factors.

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Required outcomes are

RRRRRWWWWW and WWWWWRRRRR

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Formula for probability:

Probability=\frac{\text{Required outcomes}}{\text{Total ways}}

Probability=\frac{2}{252}

Probability=\frac{1}{126}

Probability\approx 0.0079

Therefore the required probability is \frac{1}{126} or 0.0079.

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